Optimalize websites in the context of moving up in the ranking in search engines such as google, etc.

Software escrow, which is depositing source code of all sorts of software programs and which protects users of proprietary (compiled) software against a software vendor going out of business because of (e.g.) bankruptcy (a modern equivalent of what used to be done in the past via a traditional notary office using floppy disks and/or CD ROMs).